Different anchoring groups have been studied with the
aim of covalently
binding organic linkers to the surface of alumina ceramic foams. The
results suggested that a higher degree of functionalization was achieved
with a pyrogallol derivative – as compared to its catechol
analogue – based on the XPS analysis of the ceramic surface.
The conjugation of organic ligands to the surface of these alumina
materials was corroborated by DNP-MAS NMR measurements.